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🚨Cannabis Grow Problemsby FlowerPowerExperienced1mo ago

Leaves turning purple — problem or genetics?

Week 7 of flower and my fan leaves are turning deep purple. Nighttime temps are around 60°F. Is this a problem or just fall colors? The buds look healthy.
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4 comments

4 Comments

Experienced2mo ago
Looks like a classic case. Check your pH first — 90% of these issues trace back to pH being off. Even small deviations can lock out nutrients.
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Experienced2mo ago
Same thing happened to me when I was overfeeding. Backed off the nutrients by 50% and new growth came in healthy within a week.
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Experienced1mo ago
Environment is key here. What's your temp and humidity? Sometimes the symptom looks like a nutrient issue but it's actually environmental.
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Grower1mo ago
Had this exact issue last grow. What fixed it for me was flushing with pH'd water and letting the soil dry out before feeding again at half strength.
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